Mobile internet in Dublin: a visitor’s guide
Dublin is small enough to walk and well covered by 4G and 5G. What catches visitors out is the border: Ireland is in the EU, Northern Ireland is not, and a day trip north changes what your phone costs.
At a glance
- Does an eSIM work in Ireland?
- Yes. It connects to Eir (5G).
- Price
- From 4,49 € (3 GB, 15 days).
- For a one-week trip
- 5 GB for 30 days: 7,29 €.
- Does an EU phone plan work there?
- Yes: Ireland is in EU roaming, so a plan from an EU country usually works at no extra cost, within your operator's fair-use limit. If your plan is from outside the EU, it charges international roaming.
- When does the plan start?
- When your phone first connects to a network in Ireland. The QR code arrives by email within minutes.
Roaming here, in three lines
- EU and EEA plans: roam like at home applies, within the fair-use limit.
- UK plans: it depends on your operator since Brexit.
- Plans from outside Europe: usually roaming charges or a daily pass.
The rules in full, country by country, are in our guide to Internet in Ireland.
eSIM for Ireland
Data on your phone the moment you land in Ireland. No account, no app, no shop.
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For one to two weeks of maps, messaging and the odd video.
Buy up to 180 days before you fly: the plan only starts when the eSIM connects at your destination.
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Will it work on my phone?
On iPhone: Settings → General → About, and scroll to EID. If there is an EID, your phone takes eSIMs. Every iPhone from the XS (2018) onwards does.
On Android: Settings → About phone → Status, and look for EID. If there is an EID, your phone takes eSIMs. Most Galaxy S20, Pixel 3 and later do.
It also has to be carrier-unlocked. If you bought it outright or your contract is over, it almost certainly is.
Not sure about your model? Ask us before you pay and we will tell you — a person answers within 24 hours.
How it works
- 1Choose and payCard, Apple Pay or Google Pay. No account.
- 2Install it at homeThe QR arrives by email. Scan it on wifi in a minute.
- 3Connect when you landTurn on data roaming for the eSIM and you are online.
From the airport to the centre
You get into town from Dublin airport by road, most people by bus, and that is a phone job: which service, where it stops, and how long it takes at that hour. What you wrote down at home is out of date by the time you land, so you want data before you leave the terminal.
Airport Wi-Fi usually wants a registration form and tends to cut out after a while. Install the eSIM at home over your own Wi-Fi: it does not start counting until the phone connects in Ireland. Buses and trams are paid with a card or the phone, so keep some battery for that too.
Crossing to Belfast: where the EU rule stops
Ireland is in the EU. Northern Ireland and the rest of the United Kingdom are not, since Brexit, and the border has no checkpoint to remind you. An Ireland plan simply stops giving you data once you cross, and a home plan starts charging whatever its UK tariff says.
Within a few kilometres of the border, on either side, the phone can also attach to a network from the other jurisdiction while you are still where you started, so pick the network by hand there. Roaming in the UK after Brexit explains the British side; if the trip crosses, the simple answer is a plan that lists both.
Coverage: a walkable centre and the day trips
- Download offline maps and your times for the way back before you leave the city.
- Live transport and ride-hailing apps do not work without a connection.
- Tour and attraction tickets are shown from the phone: save them offline the night before.
- Photo and video uploads are what actually empty a small plan; leave them for the Wi-Fi.
The centre is compact and you will cover most of it on foot, with good coverage along the way. Indoors, thick stone walls, museums and basement rooms still knock the signal down. The trips people make out of Dublin are where it really matters: on the cliffs, the coast and the hills, coverage follows the towns and the main roads, and between them it thins out or goes altogether, on every network.
How much data
It depends on the days, on whether you watch video and on whether you share with a laptop. How much data do I need turns that into a number from what you actually do.
Prices for Ireland
Ireland data eSIMs: 3 GB for 4,49 €, 5 GB for 7,29 €, 10 GB for 11,99 € and 20 GB for 20,29 €. Data only: your number and WhatsApp stay on your usual line. The plan starts on the first connection in Ireland, so you can buy it weeks before the flight.
Travelling later?
Going to Ireland later? We remind you before you fly
Tell us the day you leave. We email you a week before and the day before with the steps to install the eSIM on Wi-Fi at home. Nothing else.
We only write about this trip, and every email has a one-click unsubscribe. Privacy policy
Does an Ireland eSIM work in Belfast?
Not unless the plan lists the United Kingdom. Northern Ireland has been outside the EU roaming rules since Brexit, so an Ireland-only plan stops giving data at the border.
Is roaming free in Dublin with an EU plan?
Yes. Ireland is in the EU, so roam like at home applies, within your operator’s fair use limit.
Will I have data when I land at Dublin airport?
Yes, if the eSIM is installed and data roaming is on for that line. It activates on the first connection in Ireland, so install it at home over Wi-Fi.
Is there coverage on day trips out of Dublin?
In the towns and along the main roads, yes. On the cliffs and the quieter coast it thins out or disappears on any network, so download your maps first.
Get your eSIM before you fly: the QR arrives by email in minutes and the plan only starts when you connect at your destination.
See eSIMs for Ireland